make clear that invalidate just replaces with default

2019-09-19 10:30:46 -04:00 · 2019-09-19 10:30:46 -04:00 · e35698371d
commit e35698371d
parent 9a447a232e
1 changed files with 1 additions and 2 deletions
--- a/src/librustc_mir/build/scope.rs
+++ b/src/librustc_mir/build/scope.rs
@ -189,8 +189,7 @@ pub enum BreakableTarget {

 impl CachedBlock {
    fn invalidate(&mut self) {
-        self.generator_drop = None;
-        self.unwind = None;
+        *self = CachedBlock::default();
    }

    fn get(&self, generator_drop: bool) -> Option<BasicBlock> {